For some women, their menstrual cycle may vary due to a variety of factors, such as diet, exercise, stress, and more. However, no matter what kind of cycle it is, there is a critical day in a woman's menstrual cycle - ovulation. During ovulation, a woman's eggs mature and await fertilization, which is a very important day because it means a woman may become pregnant.

However, a woman's menstrual cycle is not fixed and is affected by many factors, such as stress, diet, exercise, etc. Therefore, women may experience ovulation differently. For example, some women may begin to feel noticeable symptoms as early as the 12th day before their next period, while others may begin to feel symptoms as early as the 16th day before their next period.

Regardless of how a woman's menstrual cycle changes, understanding her ovulation period is important for a woman to become pregnant. Therefore, women should pay close attention to their menstrual cycles and take necessary measures during the ovulation period to ensure that they become pregnant. If a woman is unsure about her cycle or wants to determine when she is ovulating, talk to her doctor or nutritionist.